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KRATOS high cycle carbon steel

  • benefits
  • features
  • dimensions
  • materials
  • diagrams and breakaway torque
  • accessories
  • documents

1. Stainless steel ball, coated with 40 µm Hard Chrome.

Longer seal life due to the low wear of the ball.


2. Seat.

Less wear comparing with not modify seat.

High resistance to stress.


3. DEVLON Body-End gasket.

Supplementary gasket for oring protection.


4. DEVLON Bottom sealing.

Less wear comparing with not modify seat.

High resistance to stress.


5. Antistatic Device (electrical continuity between ball, stem and body).

Static electricity is avoided which can cause sparks and fire in an inflammable/explosive environment.

Contact safety throughout the entire life of the valve.


6. “V” seals pack with 3 seals.

It ensures a perfect tightness even after a high number of cycles.


7. Spring washer on the shaft seal.

Guarantee of the recovery of the gap due to the wear caused by the rotational movement of the shaft avoiding leakage towards the outside part.

Allow to maintain energized the "chevron" seals (V), thus avoiding any leakage to the outside, against huge temperature excursions.


Greater precision in the alignment of axes due to a unique positioning in the process machining from raw material to finished valve.

Longer lifetime of the valve.

Less breakaway torque


Valve body in carbon steel made with NACE certified material as standard.

Greater corrosion resistance.

Greater ductility of the material.


100% in-house manufacturing process technology.

Maximum control and accuracy in all the stages of the manufacturing process.

Flexibility in supply quickly special executions requested by customers.


PED Certificate.

Full compliance with European Safety Standards for Pressure Equipment.


Fugitive Emission ISO 15848 (ISO FE AH-C03-SSA 0) certificate.

High level of safety of the tightness towards the outside is granted.


ATEX Certificate.

Installation is possible in a potential explosive environment.


UP to SIL 3 certified

Guarantee of the high level of functional safety

STANDARD FEATURES:
• Threaded ends EN ISO 228-1or NPT.
• Floating ball, full bore.
• Soft-seat seal DEVLON.
• Stem seal with V-pack.
• Operating temperature: from -46°C to +100°C.
• Tightness Class: EN12266-1 rate A.
• Antistatic device EN12266-2.
• Anti Blow-out stem.
• Actuator connection as per standard ISO 5211.
• Superficial treatment: Galvanized.
• Intercepted fluid: liquid or gaseous fluids as long as they are compatible with the construction materials.

FEATURES ON REQUEST:
• Sealing: PTFE glass filled (RPTFE-GF), PTFE carbon-graphite filled (RPTFECF), TFM1600, PEEK. For other types of materials please contact our sales department.
• Mono-directional version with pressure-relief hole in the ball.
• Stainless steel lever . For versions in materials different from the standard (body, ball, stem), please contact our sales department.
• For other coating please contact our sales department.
• ATEX marking and certificate ON REQUEST.

CERTIFICATIONS:
• In compliance with European Directive 2014/68/EU PED.
• Fugitive Emission ISO 15848 (ISO FE BH-C03-SSA 0) -50°C/+100°C.
Safety integrity level up to SIL 3 according to IEC 61508.
• In compliance with ATEX 2014/34/EU European Directive (ATEX certificate ON REQUEST).

ENGINEERING STANDARDS:
• Body thickness in compliance with: ASME B16.34, ASME VIII div.1, EN 12516.

DIMENSIONS
SizeøA
BCøP
DEGHILISOøM
øN
T/FCH.QYXKg*
DN [mm][inch]
DN 081/4"9
1/4"
11,5
60
5525,52045,58,285F0336M56/M1032141,5671,5
DN 103/8"
93/8"
11,560
5525,52045,5
8,285F03
36M5
6/M10
32141,5
671,5
DN 151/2"
131/2"
1575
6032,522,555
9,890F04
42M5
8/M12
38151,5
802,5
DN 203/4"
193/4"
16,579
603522,557,59,890F04
42M5
8/M12
45151,5
822,7
DN 251"
251"
19,594,5
764128,569,514,6125F05
50M6
10/M16
52276,5
924,5
DN 321" 1/4
321" 1/4
22104
7646,528,57514,6125F05
50M6
10/M16
65276,5
985,5
DN 401" 1/2
381" 1/2
22129
9056,54197,521,9150F07
70M8
14/M22
75351,5
1179,8
DN 502"
512"
26149,5
1046839,5107,520,9170F07
70M814/M22
95351,5
12814,3

* Free shaft.

MATERIALS
1Body
ASTM A350 LF2 Galvanized
2End
ASTM A350 LF2 Galvanized
3Ball
A217 CA15 / A479 TP.410 / A182 F6A + Hard chromium plated
4*Seats
DEVLON
5*Body-Ends gasket
DEVLON
6*Body-Ends o'ring
HNBR
7Stem
A564 TP.630 (17-4 PH)
8*Bottom sealing
DEVLON
9*Chevron rings
TFM1600
10*Chevron rings
DEVLON
11Packing gland ring
Carbon steel Galvanized
12Springs washer
50CrV4 Galvanized
13Stem nut
UNI 3740-1 6S Galvanized
14Stop nut plate
304 S.S.
15Lever
Fe37 Galvanized
16Lock nut
UNI 3740-1 6S Galvanized
17Holder screw
Carbon steel Galvanized
18Holder screw
A2-70 UNI 3740 (304 S.S.)
*Components of seals kit

Pressure/temperature diagram

BREAKAWAY TORQUES Nm
PN - SizeDN 08 1/4"
DN 10 3/8"
DN 15 1/2"
DN 20 3/4"
DN 25 1"
DN 32 1"1/4
DN 40 1"1/2
DN 50 2"
6000 PSI / 413 bar
2222253348


5000 PSI / 344 bar





6691
4000 PSI / 276 bar







140

Torque can vary depending on temperature and type of fluid, a safety factor 1.4 must be applied.

FLOW RATE KV m3/h
KV m3/h
10112060100130170280

Kv is the coefficient, expressed in m3/h (with water at 15°C) causing a pressure loss of 1 bar.

CASTING STEM EXTENSION WITH LEVER

    MATERIALS
PART. N°
 DESCRIPTION
MATERIAL
1
Extension
AISI304 S.S.
2
Pin
AISI 430 F
3
Bush
DELRIN
4
O-RING
NBR
5
Lever
Fe 37 galvanized (*)
6
Nut
galvanized carbon steel (*)
7
Holder Lever
galvanized carbon steel (*)
8
Holder screw
A2-70
9
Spacer
PTFE Carbon Filled


(*): On request available in Aisi 304 s.s.

DIMENSIONS  
ISO VALVE
ØA
ØB
ØM
ØN
F/T
X
Y
F03
36
5,5365,5
10/638,5141,5
F04
425,542M512/845,5151,5
F05
506,5506,516/1048,5276,5
F07
708,5708,522/1457,5351,5
F10
102111021130/1879,5451,5


NOTE: Code of the spindle extension depending from drive’s type and valve’s connection; to be requested at the order.

CASTING STEM EXTENSION FOR ACTUATORS

 MATERIALS
PART. N°
 DESCRIPTION
MATERIAL
1
Extension
ASTM A351 CF8M
2
Pin
AISI 430 F
3
Bush
DELRIN
4
O-RING
NBR


NOTE: Code of the spindle extension depending from drive’s type and valve’s connection; to be requested at the order

WELDED STEM EXTENSION WITH LEVER

MATERIALS    
PART. N°
DESCRIPTION
MATERIAL
1
Extension
304 s.s.
2
Pin
AISI 430 F
3
Bush
DELRIN
4
O-Ring
NBR
5
Lever
Fe 37 galvanized (*)
6
Nut
galvanized carbon steel  (*)
7
Holder Lever
galvanized carbon steel  (*)
8
Holder screw
A2-70
9
Holder nut
A2-70 (**)
10
Spacer
PTFE Carbon Filled


(*): On request available in Aisi 304 s.s.

(**): No available on valves with Iso connection F04

DIMENSIONS
ISO VALVE
ØA
ØB
ØM
ØN
F/T
X
Y
F03
36
5,5365,510/638,5141,5
F04
425,542M512/845,5151,5
F05
506,5506,516/1048,5276,5
F07
70970922/1457,5351,5
F10
102111021130/1879,5451,5


NOTE: Code of the stem extension depending from drive’s type and valve’s connection; to be requested at the order.

WELDED STEM EXTENSION FOR ACTUATORS

MATERIALS    
PART. N°
DESCRIPTION
MATERIAL
1
Extension
304 S.S.
2
Pin
AISI 430 F
3
Bush
DELRIN
4
O-RING  
NBR


NOTE: Code of the stem extension depending from drive’s type and valve’s connection; to be requested at the order.

STEM EXTENSION WITH ADDITIONAL SEAL

 MATERIALS
PART. N°
 DESCRIPTION
 MATERIAL
1
Extension
304 s.s.
2
Pin
A564 TP.630 (17-4ph)
3
Bottom Sealing
TFM1600
4
O-Ring
FKM
5
Chevron Ring
TFM1600
6
Packing Gland Ring
304 s.s.
7
Spring Washer
50CrV4 Galvanized
8
Stem Nut
UNI 3740-1 6S Galvanized
9
Stop Nut Plate
304 s.s.
10
Gasket
GRAFOIL


DIMENSIONS
ISO VALVE
ØA
ØB
ØM
ØN
F/T
CD
F03
36
5,5
36M510/6
2010,2
F04
42
5,5
42M512/8
2615,1
F05
50
6,550M616/10
3521,2
F07
70
8,570M822/14
47,528,4
F10
102
10,5102M1030/18
6135,2

NOTE: Code of the spindle extension depending from drive’s type and valve’s connection; to be requested at the order.

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